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The Hypertech ThermoMaster Computer Chips (ref 9970) from Hypertech is a direct-replacement EPROM chip that reprograms your vehicle's ECM with optimized calibration data
The AIR FILTER provides clean combustion air with high flow capacity for the engine
Product 49666 is verified for correct specifications and dimensional accuracy before shipment
The chromoly material offers significantly higher compressive strength over OEM pushrods -- critical for cam profiles with fast ramp rates and spring pressures exceeding 300 lbs open
Hypertech 120512 Hypertech ThermoMaster Computer Chips Timing Belts The Hypertech ThermoMaster Computer ChipsThe Hypertech 120512 Hypertech ThermoMaster Computer Chips is a classic ECM performance upgrade from Hypertech that replaces your vehicle's stock calibration EPROM with a professionally tuned chip. For a wide range of GM, Ford, and Chrysler vehicles with OBD I and early OBD II ECUs, the ThermoMaster optimizes air fuel ratios, ignition timing, and rev limiters for real world power gains. It's the original plug in performance chip no wires, no modules,
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